Definitions, physiopathology, imaging -- 1. Cyanosis congestion and skin necrosis. Is necrosis a venous congestion at the origin? (S. Meaume) -- 2. Ischaemia reperfusion injury (T.K. Hunt) -- 3. Dry vs wet necrosis (H. Justiniano) -- 4. Extension in depth (S. Akita) -- 5. X-ray imaging of necrotic skin (tbd) -- Different clinical context of skin necrosis -- 6. Vasoactive drugs (tbd) -- 7. Necrotising angiodermatitis (tbd) -- 8. Rheumatoid and systemic collagenosis vasculitis (F. Massaki) -- 9. Cold induced necrosis (tbd) -- 10. Cryoglobulinemia (tbd). - 11 -- Calciphylaxy (M. Romanelli) -- 12. Necrotic burns (R. Horch) -- 13. Purpura fulminans (tbd) -- 14. Fournier gangrene (tbd) -- 15. Envenimations (tbd) -- 16. Toxic syndromes. Systemic management (tbd) -- 17. Necrotising fasciitis (S. Akita) -- 18. Tumoral (I. Fromantin) -- 19. Infection and skin necrosis (D. Leaper) -- 20. Post-injection Interferon, high-viscosity products, anticoagulants warfarin, coumadin, vasopressive drugs (tbd) -- 21. Pyoderma gangrenosum (tbd) -- 22. Trauma, degloving, scalps (R. Strockmayer) -- 23. Pressure ulcer necrosis in geriatric, in paraplegic patients in ICU (tbd) -- 24. Pressure ulcers in neonates (G. Ciprandi)  -- 25. Arterial leg ulcer and chronic arteriopathy (B. Ennis) -- 26. Necrotic skin and diabetes (tbd) -- 27. Arteriovenous fistulae and vascular thief (tbd) -- 28. How to manage necrotic flap failure (R. Horch) -- 29. Kwashiorkor, HIV, and palliative care of necrotic nodes (tbd) -- 30. Haematomas (S. Meaume) -- 31. Necrotic and exposed tendon (L. Téot) -- 32. Necrotic skin covering osteosynthetic material (G. Jukema).- 33. Abdominal wall necrosis (O. Chappuis) -- Techniques applicable to skin necrosis -- 34. Dressings available to debride. The nurse domain (tbd) -- 35. Different regulations of nursing debridement depending on the country (K. Tanaka, N.L. Tomaselli, E. Ribal) -- 36. Surgical debridement (S. Akita) -- 37. Negative pressure therapy. A contraindication to skin necrosis (tbd) -- 38. Recent technologies in necrosis debridement (L. Téot) -- 39. Stabilisation of necrotic tissue using cerium nitrate silvesulfadiazine (C. Trial).